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The Lego Club - Mrs. Colleen Wells -
Grades 3 - 5
This is a great opportunity for each student to meet with others who enjoy using creativity, logic, and yes, even mathematical skills (but they don't know it!) to build all kinds of contraptions.
Meetings are held every other week from 3:10-4:10 p.m. in the Middle School Wing.
Contact Mrs. Wells if you have any questions at wellsc.sfas@gmail.com.
Lego Club 2012-13 Registration Form
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Lego Club Meeting Dates:
January 14, 28
February 11, 25
March 4, 18
April 1, 15
May 6, 20
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Lego Club movies
Movie of the egg vehicles in action!
Movie of Mr. Deering explaining how a trebuchet works (large file - 191 MB)
Movie showing the trebuchet in action (large file - 46.2 MB)
Testing Mr. Deering's Trebuchet!
A trebuchet (from the French word trébuchet) is a siege engine that was employed in the Middle Ages. It is sometimes called a "counterweight trebuchet" or "counterpoise trebuchet" in order to distinguish it from an earlier weapon that has come to be called the "traction trebuchet," the original version with men pulling it instead of a counterweight. The counterweight trebuchet appeared in both Christian and Muslim lands around the Mediterranean in the 12th century. It could fling projectiles of up to 350 lbs. at high speeds into enemy fortifications. The trebuchet did not become obsolete until the 15th century, well after the introduction of gunpowder, which appeared in Europe in the second half of the 13th century. The three chief distinguishing characteristics of a trebuchet are:
- It's powered by gravity; most often directly by means of a counterweight;
- Such force rotates a throwing arm—usually 4 to 6 times the length of the counterweight arm—to multiply the speed of the arm and, eventually, the projectile;
- The machine utilizes a sling affixed to the end of the throwing arm, acting as a secondary fulcrum, to further multiply the speed of the projectile.
On April 18, 2012, the Lego Club took Mr. Deering's home-made trebuchet outside to test its flinging capability! Each club member brought with them a Lego piece they had made and took turns in having it flung by the machine. Please enjoy the movies and slideshow below from this event:
Above: Testing Mr. Deering's Trebuchet on April 18, 2012
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PHONE: 703-221-3868